str="itheima itcast boxuegu"
print(str)
print(type(str))
list1=list()
list2=['itheima','itcast','boxuegu']
print(list2)
print(type(list1))
tuple1=tuple()
tuple2=('itheima','itcast','boxuegu')
print(tuple2)
print(type(tuple1))
set1=set()
set2={'itheima','itcast','boxuegu'}
print(set2)
print(type(set1))
dict1=dict()
dict2={'姓名':'张三','年龄':20,'性别':'男'}
print(dict2)
print(type(dict1))
s=str.split(" ")
print(s)
num=str.count("it")
str2=str.replace(" ","|")
print(num)
print(str2)
str3=str2.split("|")
print(str3)